The diavel has abotu the same hp as a stock c14, although it is lighter.
I had a 1985 v max. It was my shop bike and I was very happy when it was old out from under me. The most worthless bike I ever owned since it was fast, btu good for nothing else. Fast in a straight line. The busa or zx 14 would be a fun bike to have in the garage since they will do other things besides go in a straight line.
Over the years I've been able to ride most, if not all, of the latest "wonder bikes" I did not own them all, btu spent time with each even if it was only delivering to the rich guys house. A person gets familiar with any bike they spend time with. That rush when the throttle opens goes away, or becomes normal. Then your bike feels normal, everything else feels slow. But nothign really feels fast. Just like the most exciting skydive is the first, then you start jumping at higher altitudes and pulling the cord later.
So, in picking a second bike, look for something good at something else besides acceleration.